4The biggest and best adventures of Marvel's mighty mutants - these are the X-Men Milestones! And this event rocked not only the X-titles, but the entire Marvel Universe! For months, the force of nature known only as Onslaught has struck from the shadows - but when the X-Men discover Onslaught's startling true identity, the villain's plan kicks into high gear! Determined to punish mankind for a litany of sins, Onslaught laid siege to the X-Men, Avengers, Fantastic Four and more - kicking off a cataclysmic conflict destined to deprive a world of its most revered icons! Earth's greatest heroes face their ultimate enemy in an explosive saga that transformed the Marvel Universe!

COLLECTING: Uncanny X-Men (1981) 333-337, X-Men (1991) 53-57, Onslaught: X-Men (1996), Onslaught: Marvel Universe (1996), Onslaught: Epilogue (1996), Avengers (1963) 401, Fantastic Four (1961) 415, Wolverine (1988) 104, Cable (1993) 35